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United States Patent | 5,503,541 |
Barito ,   et al. | April 2, 1996 |
A counterweight is connected to a driving shaft through a lost motion connection. The shaft is received in a bearing relationship in a fixed member. An axially extending portion of the counterweight coacts with the fixed member to define a pair of chambers which radially vary such that the chambers taper convergingly in a circumferential direction corresponding to the normal direction of rotation of the shaft. Cylindrical pins are located in the chambers and provide a jamming relationship between the counterweight and the fixed member when said shaft tends to rotate in a reverse direction.
Inventors: | Barito; Thomas R. (East Syracuse, NY); Keiling; Cheryl M. (Syracuse, NY) |
Assignee: | Carrier Corporation (Syracuse, NY) |
Appl. No.: | 511770 |
Filed: | August 7, 1995 |
Current U.S. Class: | 418/69; 192/223.1 |
Intern'l Class: | F01C 021/00 |
Field of Search: | 418/69,55.1,55.3 192/7,8 R 417/319 |
3011606 | Dec., 1961 | Ferris et al. | 192/8. |
3518031 | Jul., 1968 | Randall | 417/319. |
3774571 | Nov., 1973 | Shimanckas | 192/8. |
4696630 | Sep., 1987 | Sakata et al. | 418/55. |
4998864 | Mar., 1991 | Muir | 417/410. |
5248017 | Sep., 1993 | Schwarzbich | 192/8. |
5320507 | Jun., 1994 | Monnier et al. | 418/55. |
Foreign Patent Documents | |||
63-248990 | Oct., 1988 | JP. |